Scale-invariant hidden local symmetry, topology change and dense baryonic matter II - CEA - Commissariat à l’énergie atomique et aux énergies alternatives Access content directly
Journal Articles Physical Review D Year : 2017

Scale-invariant hidden local symmetry, topology change and dense baryonic matter II

Abstract

Exploiting certain robust topological inputs from the skyrmion description of compressed baryonic matter with a scale-chiral symmetric Lagrangian, we predict the equation of state that is consistent with the properties of nuclear matter at the equilibrium density, supports the maximum mass of massive compact star $\sim 2 M_\odot$ and surprisingly gives the sound velocity close to the "conformal velocity" $1/\sqrt{3}$ at densities $\gtrsim 3 n_0$. At the core of this result is the observation that parity-doubling occurs in the nucleon structure as density goes above $\sim 2n_0$ with a chiral-singlet mass $m_0 \sim (0.6-0.9) m_N$, hinting at a possible up-to-date unsuspected source of proton mass and an emergence at high density of scale symmetry and flavor local symmetry, both hidden in the QCD vacuum.
Fichier principal
Vignette du fichier
PaKLeRh1.pdf (769.79 Ko) Télécharger le fichier
Origin : Publisher files allowed on an open archive

Dates and versions

cea-01562966 , version 1 (17-07-2017)
cea-01562966 , version 2 (06-12-2022)

Identifiers

Cite

Won-Gi Paeng, Thomas T. S. Kuo, Hyun Kyu Lee, Yong-Liang Ma, Mannque Rho. Scale-invariant hidden local symmetry, topology change and dense baryonic matter II. Physical Review D, 2017, 96, pp.014031. ⟨10.1103/PhysRevD.96.014031⟩. ⟨cea-01562966v2⟩
147 View
194 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More